Length of the tangent is _____(a) \(\sqrt {d^2+c^2}\)(b) \(\sqrt {r^2-d^2}\)(c) \(\sqrt {d^2-c^2}\)(d) \(\sqrt {d^2-r^2}\)The question was asked by my college professor while I was bunking the class.My query is from Tangent to a Circle in portion Circles of Mathematics – Class 10

Length of the tangent is _____(a) \(\sqrt {d^2+c^2}\)(b) \(\sqrt {r^2-

1.	Length of the tangent is _____(a) \(\sqrt {d^2+c^2}\)(b) \(\sqrt {r^2-d^2}\)(c) \(\sqrt {d^2-c^2}\)(d) \(\sqrt {d^2-r^2}\)The question was asked by my college professor while I was bunking the class.My query is from Tangent to a Circle in portion Circles of Mathematics – Class 10
Answer» CORRECT answer is (d) \(\sqrt {d^2-r^2}\) Explanation: LENGTH of the tangent (l) = \(\sqrt {d^2-r^2}\) Where, l = Length of the tangent. d = DISTANCE between center of the circle and the external point of the circle. r = RADIUS of the circle.

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